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#pragma once
#include "Stream.hpp"
#include <functional>
namespace cru::io {
class CRU_BASE_API MemoryStream : public Stream {
public:
MemoryStream() = default;
MemoryStream(
std::byte* buffer, Index size, bool read_only = false,
std::function<void(std::byte* buffer, Index size)> release_func = {})
: buffer_(buffer),
size_(size),
read_only_(read_only),
release_func_(std::move(release_func)) {}
CRU_DELETE_COPY(MemoryStream)
CRU_DELETE_MOVE(MemoryStream)
~MemoryStream() override;
public:
bool CanSeek() override;
Index Seek(Index offset, SeekOrigin origin = SeekOrigin::Current) override;
bool CanRead() override;
Index Read(std::byte* buffer, Index offset, Index size) override;
bool CanWrite() override;
Index Write(const std::byte* buffer, Index offset, Index size) override;
std::byte* GetBuffer() const { return buffer_; }
Index GetSize() override { return size_; }
private:
std::byte* buffer_ = nullptr;
Index size_ = 0;
Index position_ = 0;
bool read_only_ = false;
std::function<void(std::byte* buffer, Index size)> release_func_;
};
} // namespace cru::io
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